A new fast response colorimetric and fluorescent probe for the detection of bisulfite and its application on test strips

Abstract

ABSTRACT A new carbazole-based colorimetric and fluorescent probe CBB for the detection of bisulfite (HSO3 −) has been developed via nucleophilic addition reaction. Probe CBB can detect HSO3 − with excellent sensing properties including high selectivity and sensitivity, fast response (5 s). More importantly, probe CBB system not only can be applied to monitor HSO3 − in environment with excellent solid properties based on test strips but also can be used for the detection of HSO3 − in real-water samples with satisfactory results.